Adding a power brake booster to a '65 C-10

[vince1]

I think I gave erroneous information. Maybe front reservoir goes to front brakes and rear reservoir goes to rear brakes.

[Captainfab]

With a '67-'70 master cylinder, the front port is front brakes and the rear port is rear brakes.

[Captainfab]

As long as you have all the correct pieces, that booster and master will work. Do you have the booster mounting parts and the long intermediate pushrod?

Originally Posted by kevinjr

1964 C 10 Cant you use 1/4 inch lines all the way with a dual MC front & Rear .What is the reason they down size to the 3/16th to the rear lines from the rear tee Junction
I found a OEM Booster do i mate it with a 67-72 C 20 Master Cylinder
Thanks in advance

[nxtruck]

Originally Posted by Captainfab

With a '67-'70 master cylinder, the front port is front brakes and the rear port is rear brakes.

Once again, Captainfab is correct. This is 100% correct. I found out the hard way after a few near-misses with mine plumbed the opposite way. The rear wheels will lock up easily and the front brakes will not get enough fluid pressure with the plumbing reversed.

[vince1]

I have noticed no difference in performance from the old single cylinder which obviously gave the same pressure to front and back. Captainfab is sure to be correct in the line routing but I doubt if the dual cylinder changes the pressure between front and rear ports. If that were the case we would be needing to change slave cylinder sizes at the wheels.